Inson



(No Model.) I

J. M. PARKINSON. DETAGHABLE FASTENER FOR CUFF LINKS.

No. 599,353. Patented Feb. 22,1898.

Unite ATENT Orricn,

JOHN MARSHALL PARKINSON, OF TORONTO, CANADA, ASSIGNOR TO AMBROSE KENT & SONS, OF SAME PLACE.

DETACHABLE FASTENER FOR CUFF LlNKS.

SPECIFICATION forming part of Letters Patent No. 599,353, dated February 22, 1898.

Application filed October 8, 1896. Serial No. 608,255. (No model.)

To all whom it 'IIMLZ/ concern.-

Be it known that I, JOHN MARSHALL PARK.- INSON, jeweler, of the city of Toronto, in the county of York, in the Province of Ontario, Canada, have invented certain new and useful Improvements in Detachable Fasteners for Cuff-Links and Similar Articles, of which the following is a specification.

My invention relates to improvements in adjustable fasteners for cuff-links and similar articles; and the object of the invention is to design such a fastener as when once secured will be impossible to become detached of itself; and it consists, essentially, in making the fastener in two parts, one part being tubular in form and fastened to one part of the cuff-link or like article and having the outer end with a notch formed in the edge thereof and the other part being in the form of a stem, which is secured to such part of the cuff-link or like article, the said stem having an inner enlargement and a projection made on such enlargement, which is of corresponding cross-sectional shape to the notch in the tubular portion, the said parts being arranged to fasten together in the manner hereinafter more particularly explained.

Figure l is a perspective view of a cuff-link connected together in accordance with my invention. Fig. 2 is a similar view showing the link separated. Fig. 3 is an enlarged detail of the button, showing the construction of the stem portion attached thereto. Fig. 4: is an enlarged detail, partially in section, showin g the other portion of the button with the tubular portion connected thereto. Fig. 5 is a cross-section of a collar-button.

In the drawings like letters of reference indicate corresponding parts in each figure.

In Figs. 1, 2, 3, and 4, A is one ornamental end of the link, and O the other. In the center of the back of the end A is secured a stem B by the inner flange b, such stem being secured to the back by solder or in any other flange 0, by which it is attached to the ornamental end 0.

O is a tubular stein which is soldered to the outside of the tubular stem O, as indicated. The outer end of the portion O has an inwardly-extending flange 0 provided with a notch 0 thus leaving a hole 0 corresponding substantially in diameter to the enlargement Z) of the stem 13 and having the notch 0 corresponding to the cross-sectional size of the projection 6 D is a spiral spring locatedwithin the tubular stem 0'.

Although I show the tubular stem made in two portions 0 and C it will of course be understood that it might be readily made in one portion; but I prefer making it in two when the ornamental ends are made of gold; but in cheaper classes of goods it would merely be made in one portion.

In order to fasten the parts together, the stem 13 is inserted in the tubular stem 0 the projection 11 being brought opposite to the notch C so that it may pass readily into the tubular stem G the end of the enlargement b pressing against and pushing back the spiral spring D. \Vhen the inner end of the enlargement b has passed the end of the notch 0 the end A may be turned around quickly, so as to bring the inner end of the projection 19 against the flange 0 The spiral spring D will now serve to securely hold the inner end of the projection b against the flange c of the tubular stem O thereby serving to securely fasten the parts together in their proper position.

In Fig. 5 I show the alternative form used for a collar-button or stud, in which I provide the top E with the solid stem and the base F with a tubular stem. The parts, however, are exactly identical in form and oper ation. Many like articles of jewelry in commen use may also be provided with the same fastening.

It will be seen that Where my fastener-is used for sleeve links and buttons or studs all danger of crushing the linen is entirely obviated, as the stem may be readily inserted through the holes.

That I claim as my invention is A fastener for cuif-links, and the like, comprising one disk-shaped end having an imperforate sleeve extending therefrom with an annular flange projecting inwardly at the end thereof to form a contracted opening, and a recess in the flange extending from the edge of the opening to the inner Wall of the sleeve, a spiral spring within the sleeve permanently confined between the .flange and the diskshaped end, and a second disk-shaped end having a stern extending therefrom adapted to closely fit into the reduced opening in the sleeve, a projection extending from the side of said stem adapted to pass through the recess in the flange and to be pressed against the under side of said flange by said spring when the stem is inserted within the sleeve and turned, and a reduced extension projecting centrally from the end of the stem adapted to first enter the reduced opening to guide the larger portion of the stem therethrough, said extension passing within the coils of the spring whereby the stern will be prevented from wabbling by the close fit of the flange about the larger part thereof and by the spring surrounding the extension, substantially as described.

JOHN MARSH ALL PARKINSON.

Witnesses:

B. BOYD, H. DENNISON. 

